NC0024406_Expedited Permit Renewals_20060829

FACT SHEET FOR EXPEDITED PERMIT RENEWALS
Racir• Tnfnrmatinn to dptPrminP nntential for exnedited nermit renewal
Reviewer/Date
Permit Number
NG D U2_ 41g? I
Facility Name
s cr'& ell c. NA n, vkr )"VL, h1s,
Basin Name/Sub-basin number
Cs2
Receiving Stream
Yni
Stream Classification in Permit
Does permit need NH3 limits?i
Does permit need TRC limits?�
Does permit have toxicity testing?
v)
Does permit have Special Conditions?
�tiz,p, �,� �np,�,�( Cs• cQ��
Does permit have instream monitoring?
,
Is the stream impaired (on 303(d) list)?
a'17P
Any obvious compliance concerns?
A
Any permit mods since lastpen-nit?
vp0 ( g -b J 0 r. FA b t)or ; ' ,s
Existing expiration. date
Igo, 0
Reissued permit expiration date
xe sed_ ermit e£fecti-ve-date— --
Y
Micrellanennc C ammentc
YES_ This is a SIMPLE EXPEDITED permit renewal (administrative
renewal. with no changes, or only minor changes such as TRC, NH3,
name/ownership changes).. Include conventional WTPs in this group.
YES_ This is a MORE COMPLEX EXPEDITED permit renewal (includes
Special Conditions (such as EAA, Wastewater Management Plan), 303(d)
listed, toxicity testing, instream monitoring, compliance concerns, phased
limits). Basin Coordinator to make case-by-case decision.
YES This permit CANNOT BE EXPEDITED for one of the following reasons:
• .Major Facility (municipal/industrial)
• .Minor Municipals with pretreatment program
• Minor Industrials subject to Fed Effluent Guidelines (lb/day limits for BOD, TSS,
etc)
• Limits based on reasonable potential analysis (metals, GW remediation organics)
• Permitted flow > 0.5 MGD (requires full Fact Sheet)
• Permits determined by Basin Coordinator to be outside expedited process
TB Version 8/18/2006 (NPDES Server/Current Versions/Expedited Fact Sheet)
1
t}�Q
Det

�OFWAT,RP
o �
Mr. Thomas J. Guthrie, Manager
Duke Energy Carolinas, LLC
526 South Church Street
Charlotte, North Carolina 28202
Dear Mr. Guthrie:
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Env'ir'onment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
November 8, 2007
Subject: Issuance of NPDES Permit
Permit NCO024406
Belews Creek Steam Station
Stokes County
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly, we are forwarding the attached NPDES discharge permit. This permit is issued pursuant to the
requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North
Carolina and the U.S. Environmental Protection Agency dated October 15, 2007.
This final permit contains no significant change from the draft permit dated September 12, 2007.
If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable
to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt
of this letter. This request must be in the form of it written petition, conforming to Chapter 150B of the North
Carolina General Statutes, and filed with the Office of Administrative Hearings (6714 Mail Service Center,
Raleigh, North Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may
require modification or revocation and reissuance of the permit.
This permit does not affect the legal requirements to obtain other permits which may be required by the
Division of Water Quality or permits required by the Division of Land Resources,, the Coastal Area Management
Act or any other Federal or Local governmental permit that may be required.
If you have any questions concerning this permit, please contact Agyeman Adu-Poku at telephone
number [phone], extension 508.
r� Sincerely,
Coleen H. Sullins
cc: Central Files,
(NPDES File
Winston-Salem Regional Office / Surface Water Protection
EPA Region IV/Roosevelt Childress, Section
Aquatic Toxicology Unit
One
NCarolina
�l �RltlCl lly
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: www.ncwaterqualit�.org Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax [phone]
An Equal Opportunity/Affirmative Action Employer -50% Recycled/10% Post Consumer Paper

Permit NCO024406
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the
Federal Water Pollution Control Act, as amended, the
Duke Energy Carolinas, LLC
is hereby authorized to discharge wastewater from a facility located at the
Belews Creek Steam Station
3195 Pine Hall Road (NCSR 1908)
Belews Creek
Stokes County
to receiving waters designated as the West Belews Creek/Belews Lake (outfall 001) and the Dan River
(outfall 003) in the Roanoke River Basin in accordance with effluent limitations, monitoring
requirements, and other conditions set forth in Parts I, II, III and IV hereof.
This permit shall become effective December 1, 2007.
This permit and authorization to discharge shall expire at midnight on February 28, 2012.
Signed this day November 8, 2007.
Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

V
Permit NC0024406
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked, and as of this issuance, any previously issued permit bearing this number is no longer
m
effective. Therefore, the exclusive authority to operate and discharge fro_ this facility arises under the
permit conditions, requirements, terms, and provisions described herein.
The Duke Energy Carolinas, LLC is hereby authorized to:
Continue to discharge once -through cooling water, intake screen backwash, recirculated cooling
water, and station equipment cooling water through outfall 001; treated wastewater consisting
of waste streams from the power house and yard holding sumps, ash sluice lines, chemical
holding pond,. coal yard sumps, stormwater, remediated groundwater, domestic wastewater, and
FGD system blowdown through outfall 003. All discharges result from activities at Duke
Energy's Belews Creek Steam Station, 3195 Pine Hall Road (NCSR 1908), Belews Creek,
Stokes County, and
2. After submitting an acceptable Engineer's Certification Form to the Division at completion of
construction, begin operating new facilities sufficient to treat FGD wastewater discharging to
the ash settling basin through internal outfall 002; and
3. Discharge wastewater from said treatment works at the location specified on the attached map
into West Belews Creek/Belews Lake (outfall 001) and the Dan River (outfall 003), which are
classified C and WS -IV waters, respectively, in the Roanoke River Basin.

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N00024406 - Belews Creek Steam Station
Latitude (001): 3616'49.5" Receiving Stream (001): Belews Lake
Longitude (001): 80°03'39.8" Stream Class: C
Latitude (003): 3618'22.0" Receiving Stream (003): an River
Lon itude(003): 80"04'50.7" Stream Class: WS -IV
Quad #: B18SE/Belews Lake, NC
Sub -Basin: 03-02-01 Permitted Flow: no limit
Facility x„ '
Locations r,2�,i
North Duke Power- Belews Steam Station
NC0024406
Map not to scale

Permit NCO024406
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (OUTFALL 001)
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge waste streams described in the Supplement to Permit Cover Sheet from Outfall 001.
Such discharges shall be limited and monitored by the Permittee as specified below.
' ^'S � "fit"'."•`ri %�.r�F :..� S'^"vt��
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CHARAGTERZSTICS
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Monitor & Report
Continuous
Pump Los Effluent
Temperature °C
Daily
Recorder/Grab 1 Upstream
Temperature °CZ
32°C
Daily
Recorder/Grab Downstream
Temperature °C
Daily
Recorder/Grab Effluent
Notes:
1. Sampling locations: Upstream - Upstream at Southern Railroad crossing of Belews Creek or East Belews Creek (site 405 or site
419), Downstream - Downstream at the discharge from the Dam. Upstream temperature samples are to be taken one foot below the
surface.
2. In no case shall the ambient temperature exceed 32°C as a result of Belews Creek Steam Station operations. The ambient
temperature shall be defined as the daily average downstream discharge water temperature. In cases where the Permittee
experiences equipment problems and is unable to obtain daily temperatures from the existing temperature. monitoring system,
monitoring must be reestablished within five working days.
Chlorination of the once through condenser cooling water and/or auxiliary cooling water, discharged through
outfall 001, is not allowed under this permit. Should Duke Power wish to chlorinate its condenser cooling water, a
permit modification must be requested and received prior to commencing chlorination.
There shall be no discharge of floating solids or visible -foam in other than trace amounts.

Permit NCO024406
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (INTERNAL
OUTFALL 002)
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge waste streams from Internal Outfall 002 (treated FGD wet scrubber wastewater to
ash settling basin). Such discharges shall be limited and monitored by the Permittee as specified below:
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Monitor & Report
Monthly
similar Effluent
readings
Total Suspended Solids
Monitor & Report
Weekly
Grab. Effluent
Total Arsenic
Monitor & Report
Weekly
Grab Effluent
Total Cadmium
Monitor & Report
Weekly
Grab Effluent
Total Chromium
Monitor & Report
Weekly
Grab Effluent
Chloride .
Monitor & Report .
Weekly
Grab Effluent
Total Mercury
Monitor & Report
Weekly
Grab Effluent
Total Nickel
Monitor & Report
Weekly
Grab Effluent
Total Selenium
Monitor & Report
Weekly
Grab Effluent
Total Silver
Monitor & Report
Weekly
Grab Effluent
Total Zinc
Monitor & Report
Weekly
'Grab Effluent
Notes:
1. Effluent shall be defined as the discharge from the FGD wastewater treatment system prior to discharge to the ash settling basin.
All flows shall be reported on monthly DMRs, should no flow occur during a given month, the words "No Flow" shall be clearly written
on the front of the DMR. All samples shall be of a representative discharge. DMRs for this outfall shall be submitted only after discharge
commences from the FGD system.
Sampling is only required when this outfall is discharging.

Permit NCO024406
A. (3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (OUTFALL 003)
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge from outfall 003 (ash settling basin discharge). Such discharges shall be limited and
monitored by the Permittee as specified below:
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Flow (MGD)
Monthly
Pump logs or
Effluent
similar readings
Oil and Grease'
15.0 m 20.0 m Quarterly
Grab
Effluent
Total Suspended Solids'
30.0 m 100.0 mQuarterly
Grab
Effluent
Total Arsenic'
Quarterly
Grab
Effluent
Total Cadmium;
Weekly
Grab
Effluent
Total Chromium'
Weekly
Grab
Effluent
Chloride'
Weekly
Grab
Effluent
Total Copper
1.0 m QU erly
Grab
Effluent
Total Iron
1.0 m Quarterly
Grab
Effluent
Total Mercury'
Weekly
Grab
Effluent
Total Nickel'
Weekly
Grab
Effluent
Total Selenium'
Quarterly
Grab
Effluent
Total Silver'
Weekly
Grab
Effluent
Total Zinc'
Weekly
Grab
Effluent
Fluoride
Quarterly
Grab
Effluent
Total Phosphorus
Quarterly
Grab
Effluent
Total Nitrogen (NO2 + NO3 +
Quarterly
Grab
Effluent
TKN)
Chronic Toxicity'
See Special Condition A. 6 Quarterly
Grab
Effluent t
HS
2/Month
. Grab
Effluent
Notes:
1. Quarterly monitoring for TSS and Oil and Grease shall be performed concurrently with monitoring for whole effluent
toxicity.
2. Monitoring for arsenic and selenium shall be conducted weekly when outfall 002 is discharging.
3. Monitoring is required only when outfall 002 is discharging.
4. Whole Effluent Toxicity shall be monitored by chronic toxicity (Ceriodaphnia dubia) P/F at 19%. Tests shall be
conducted in February, May, August and November (see special condition A. (6.) for details).
5. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored 2/month at
the confluence of the discharge and the receiving waters by grab sample.
The coal pile runoff and low volume wastes shall be discharged into the ash settling pond.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Y
Permit NCO024406
A. (4.) SPECIAL CONDITIONS
The following special conditions are applicable to Belews Creek Steam Station under NCO024406:
• There shall be no discharge of polychlorinated biphenyl compounds such as those commonly used for
transformer fluid.
• Outfall 006 - The monitoring requirements for this internal discharge have been relocated to the actual
discharge location (outfall 003) as of the February 1, 1998 NPDES permit. This discharge must remain
internal and discharge to the ash pond. If discharge to the ash pond is relocated to surface waters of the
state, then the monitoring requirements for this discharge will be reinstated.
• Continued intake screen backwash and non -contact cooling water are permitted without limitations'or
monitoring requirements..
• Nothing contained in this permit shall be construed as a waiver by the Permittee or any right to a hearing it
may have pursuant to State or Federal laws or regulations.
• The term"low volume waste sources" means, taken collectively as if from one source, wastewater from all
sources except those for which specific limitations are otherwise established in this part. Low volume
wastewater sources include, but are not limited to: wastewater from wet scrubber air pollution control
systems, ion exchange water treatment system, water treatment evaporator blowdown, laboratory and
sampling streams, boiler blowdown, floor drains, cooling tower basin cleaning wastes, and recirculating .
service water systems. Sanitary and air conditioning wastes are not included.
• The term "chemical metal cleaning waste" means any wastewater resulting from cleaning any metal process
equipment with chemical compounds, including, but not limited to, boiler tube cleaning. Chemical metal
cleaning will be conducted according to Duke Power approved equivalency demonstration.
• It has been determined from information submitted that the plans and procedures in place at Belews Creek
Steam Station are equivalent to that of a BMP. .
• Discharge of any product registered under the Federal Insecticide, Fungicide, and Rodenticide Act to any
waste stream which may ultimately be released to lakes, rivers, streams or other waters of the United States
is prohibited unless specifically authorized elsewhere in this permit. Discharge of chlorine from the use of
chlorine gas, sodium hypochlorite, or other similar chlorination compounds for disinfection in the plant
potable and service water systems and in sewage treatment is authorized. Use of restricted use pesticides
for lake management purposes by applicators licensed by the N.C. Pesticide Board is allowed.
• The Permittee shall report all visible discharges of floating materials, such as oil sheen, to the Director
when submitting DMRs.
• If the Permittee, after monitoring for at least six months, determines that the facility is consistently meeting
the effluent limits contained herein, the Permittee may request of the Director that the monitoring
requirements be reduced to a lesser frequency.'
• The Dan River Monitoring Plan, Phase III, as referred in the Engineering Report dated June 10, 1983 and .
submitted to DWQ, shall continue to be conducted.

Permit NCO024406
Y
A. (5.) SPECIAL CONDITION FOR DISCHARGE OF WASTEWATER
Beginning on the effective, date of this permit and lasting until expiration, there shall be no discharge of plant
wastewater to the ash pond unless the Permittee provides and maintains at all times a minimum free water
volume (between the top of the sediment level and the minimum discharge elevation) equivalent to the sum of
the maximum 24-hour plant discharges plus all direct rainfall and all runoff flows to the pond resulting from a
10 -year, 24-hour rainfall event, when using a runoff coefficient of 1.0. During the term of the permit, the
Permittee shall remove settled material from the ponds or otherwise enlarge the available storage capacities in
order to maintain the required minimum volumes at all times. The Permittee shall determine and report to the
permit issuing authority the following on an annual basis:
1) the actual free water volume of the ash pond,
2) physical measurements of the dimensions of the free water volume insufficient detail to allow validation of
the calculated volume, and
3) a certification that the required volume is available with adequate safety factor to include all solids
expected to be deposited in the pond for the following year.
Present information indicates a needed volume of 376.03 acre-feet in addition to solids that will be deposited to
the ash pond; any change to plant operations affecting such certification shall be reported to the Director within
five days.
NOTE: In the event that adequate'volume has been certified to exist for the term of the permit, periodic
certification is not needed.

Permit NCO024406
A. (6.) CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QUARTERLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 19.0%.
The permit holder shall perform at a minimum, guarterly monitoring using test procedures outlined in the "North Carolina
Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent versions or "North Carolina
Phase Il Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions. The tests will
be performed during the months of February, May, August and November. Effluent sampling for this testing shall be
performed at the NPDES permitted final effluent discharge below all treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV below the permit
limit, then multiple -concentration testing shall be performed at a minimum, in each of the two following months as
described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998)
or subsequent versions.
The chronic value for multiple concentration tests will be determined using the.geometric mean of the highest concentration
having no detectable impairment of reproduction or survival and the lowest concentration that does have a detectable
impairment of reproduction or survival. The definition of "detectable impairment," collection methods, exposure regimes,
and further statistical methods are specified in the "North Carolina Phase II Chronic Whole Effluent Toxicity Test
Procedure" (Revised -February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring
Form (MR -1) for the months in which tests were performed, using the parameter code TGP3B for the pass/fail results and
THP3B for the Chronic Value. Additionally, DWQ Form AT -3 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Quality
Environmental Sciences Section
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than 30 days after
the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all cbncentration/response
data, and be certified by laboratory supervisor and ORC or approved designate signature. Total residual chlorine of the
effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the permittee
will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility name, permit
number, pipe number, county, and the month/year of the report with the notation of "No Flow" in the comment area of the
form. The report shall be submitted to the Environmental Sciences Branch at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be required
during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water Quality
indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include alternate
monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival,
minimum control organism reproduction, and appropriate environmental controls, shall constitute an invalid test and will
require immediate follow-up testing to be completed no later than the last day of the month following the month of the
initial monitoring.

Permit NCO024406
A. (7.) BIOCIDE .CONDITION
The Permittee shall not use any biocides except those approved in conjunction with this permit application.
The Permittee shall notify the Director in writing not later than ninety (90) days prior to instituting use of any
additional biocide used in cooling systems, which may be toxic to aquatic life other than those previously
reported to the Division of Water Quality. Such notification shall include completion of Biocide Worksheet
Form 101 and a map locating the discharge point and receiving stream. Completion of Biocide Worksheet
Form 101 is not necessary for those outfalls containing toxicity testing. Division approval is not necessary for
the introduction of a new biocide into an outfall currently being tested for toxicity.

Re: Duke Energy - Belews Creek Steam Station
Subject: Re: Duke Energy - Belews Creek Steam Station
From: Lee Spencer <[e-mail]>
Date: Mon, 05 Nov 2007 14:04:01 -0500
To: Agyeman Adu-Poku <[e-mail]>
CC: James McRight <[e-mail]>, Tom Boyd <[e-mail]>
No objection to the issuance of this permit.
Lee G. Spencer, P.E.
Regional Engineer
Public Water Supply Section
NC DENR Winston-Salem Regional Office
585 Waughtown Street
Winston-Salem, NC 27107
Voice: [phone]
FAX: [phone]
On 10/31/2007 10:44 AM, Agyeman Adu-Poku wrote:
Lee,
Attached is a DEH memo for approval and draft permit for Belews Creek Steam Station. Please I
forget to copy you on the draft at the time of public notice. I am very sorry about that. If you could
do me a favor by expediting this approval process, I will really appreciate it. Thanks so much for
your help.
Agyeman
_. --- - --- - --__-------- - - - --- - - - ------
Lee Spencer <Lee.Spencer(q-,)NCmail.net>
WSRO
NC DENR
1 of 1 11/8/2007 1:29 Pi I

Fw: Duke Energy Belews Creek Steam Station, NCO024406
Subject: Fw: Duke Energy Belews Creek Steam Station, NCO024406
From: [e-mail]
Date: Wed, 31 Oct 2007 09:47:09 -0400
To:[e-mail]
----- Forwarded by Marshall Hyatt/R4/USEPA/US on 10/31/2007 09:47 AM
Karrie-Jo
Shell/R4/USEPA/U
S
10/31/2007 09:10
AM
I had no comments.
Karrie-Jo Robinson -Shell, P.E.
Marshall
Hyatt/R4/USEPA/U
S
10/30/2007 04:38
PM
To
Marshall Hyatt/R4/USEPA/US@EPA
cc
Subject
Re: Fw: Duke Energy Belews Creek
Steam Station, NC0024406(Document
link: Marshall Hyatt)
To
Karrie-Jo Shell/R4/USEPA/US@EPA
cc
Subject
Fw: Duke Energy Belews Creek
Steam Station, NCO024406
----- Forwarded by Marshall Hyatt/R4/USEPA/US on 10/30/2007 04:38 PM
Agyeman Adu-Poku
<Agyeman.Adupoku
@ncmail.net> To
Marshall Hyatt/R4/USEPA/US@EPA
10/30/2007 01:16 cc
PM
Subject
Duke Energy Belews Creek Steam
..cII 1 W11 /?nm q -a9 Ann

Fw: Duke Energy Belews Creek Steam Station, NCO024406
Station, NCO024406
Hi Marshall,
I did not receive no comment note from you on this facility. Does that
mean EPA is not reviewing this renewal application?
Thanks,
AAP
I
(See attached file:
2 of 2
..Adupoku.vcf)
Content -Type: application/octet-stream
Content -Encoding: base64
.Adupoku.
10/31/2007 9:49 AM

Re: Belews Creek
Subject: Re: Belews Creek
From: Agyeman Adu-Poku <[e-mail]>
Date: Fri, 19 Oct 2007 08:41:31 -0400
To: "Wylie, Robert R" <[e-mail]>
Hi Robert,
I will effect the changes. I have not received any comment yet. Thanks a lot.
Agyeman
Wylie, Robert R wrote:
Hi Agyeman. In the permit please change the company name from Duke
Power, LLC to Duke Energy Carolinas, LLC. That may be the only comment
that Duke Energy has. I'll try to get the document you mentioned to
you. Has anyone else commented on the permit. Thanks, Robert
-----Original Message ---
From: Agyeman Adu-Poku[mailto: Agyeman. Adupoku@ncmail. net] Sent: Monday, September
10, 2007 3:51 PM
To: Wylie, Robert R
Subject: Re: Belews Creek
Robert,
Attached is the draft permit. Please take a look at it and let me know if you have
any comments. The draft will go to public notice tomorrow
and
you should have a hard copy. Let me know if there is something you want change or
add before then.
Do you have a copy of the engineering report dated June 10, 1983 referenced in the
special conditions section of the permit?
Thanks,
AAP
Wylie, Robert R wrote:
Hi Agyeman,
Would you provide to me an update on the draft NPDES permit for Belews
Creek? I was out of my office last week. I just want to know how
everything is going.
Thanks,
Robert
Agyeman Adu-Poku <agyeman.adupoku [e-mail]>
Environmental Engineer
Department of Environment & Natural Resources
Division of Water Quality-NPDES Unit
1 of 1 10/19/2007 8:41 AM

r.
DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NCO024406
Rlt
AppllcantlFacilityNarne.';`
Duke Power LLC- Belews Creek Steam Station
A ' _licanl xAddress, , ,:
526 South Church Street, Charlotte North Carolina 28202
Faciltty
3195 Pine Hall Road; Belews Creek, NC 27009
Perriutted Flow, • °• , , . „`;;
No flow limit
Type of Waste ,
Industrial (100%);
X
Prim.SIC Code: 4911
�S,y. 4 i �• Y E f xF
_
Faclity/Perrnit Status `
Class I /Active; Renewal
County ^r;a ', r
Stokes County
Jk
r,X<
Receiving Stream y
Belews Lake (001)
:Regional' Office ' s'° °
WinCston-Salem
y J a lC
`
and Dan River 003
URO
, f
Stream Classification '
C (Belews Lake),
:State Grid / USGS Quad ;°
B 18SE/Belews Lake
a
WS River
�s
-IV an
No
Penult- Winter •r , 5 ° _. _;
Agyeman Adu-Poke
wa $
"S
03-02-01
GDate ' uX r +.. ;. _:
9/12/2007
.r..._...vn.
.3.,.
Draniage'Area (rni2) a °`
501 (Dan River)
$
-
r-
lirimer 7Q10 efs) ° 80 (Dan River)
$ "Min
W 160 (Dan River)
195(Dan River)
Ayera e Flow (cfs) �� `, `' 576 (Dan River
001: Lat. 36°16' 49.5" N Long. 80° 03' 39.8" W
1WC °%)ff fi
�'t�
19
002: Lat. 36018' 22.0" N Long. 80'04'50.7"W
1¢ ✓� YlP� d 5 DRi ^[ S 1 d
006: Lat. 36° 17' 5.0" N Lon 80° 04' 18'' W
z
BACKGROUND
Duke Power's Belews Creek Steam Station is a coal fired steam electric plant in Stokes County._
The facility has three permitted outfalls in the current NPDES discharge permit, issued in January 1998.
The sources of wastewater for these outfalls include non -contact cooling water, ash basin discharge,
sanitary waste, cleansing and polishing water and stormwater from process areas. ,
In addition to NPDES Permit NC0024406, the facility also holds the following permits:
01983T19 (air permit), NCD000856591 (Hazardous wastes), and 85-03 (industrial landfill). The current.
permit expired February 28, 2007.
The outfalls are defined as follows (as per the 2002 permit application):
001: Once Through Cooling Water
001 discharges non -contact cooling. water used to cool the equipment and ' condense
exhaust steam from the turbines. No chemicals are added to the water. Non -contact cooling
water for the station equipment, recirculated cooling water coolers and hydrogen and oil coolers.
Intake screen backwash (from which the debris has been collected and composted) is also
discharged through this outfall. 001 discharges to Belews Lake.
003: Ash Basin
003 discharges the "process flow" that is regulated under federal effluent guidelines, 40
CFR Part 423.12. This discharge consists of flow from the powerhouse sumps, the yard holding
sump, the ash sluice lines, the chemical holding pond, the coal :yard sumps, - groundwater
remediation system, stormwater, domestic wastewater, and FGD system blowdown. 003
discharges to the Dan River.
Fact Sheet
NPDES NC0024406Renewal
Page l

002: FGD Wastewater
002 discharges treated FGD wastewater to the Ash basin. These wastes are sent to the
chemical holding pond, which then discharges through 003. 002 is therefore an internal
outfall.
This facility does not require a 316(a) variance.
Permit Renewal Application:
The permittee submitted the following items for permit renewal:
• EPA Form 1
• EPA Form 2E
• EPA Form 2C (with a priority pollutant analysis)
• Site Maps
• Water Flow Diagram
• Supplemental information
The following changes for outfall 001 only were requested:
• All temperature limits be expressed in degrees Fahrenheit or Celsius.
The following changes for outfall 003 only were requested:
• Reduction of monitoring of oil and grease from quarterly to semi-annually.
• Reduction of monitoring of total copper and iron from quarterly to occurrence of a chemical
metal cleaning.
• Change the monitoring for. TSS from quarterly to semi-annually
• Reduce monitoring for both total nitrogen and phosphorus from quarterly to once per year.
The Permittee also requested some modifications to the monitoring program for the assessment
of balanced and indigenous populations in Belews Lake.
Instream Monitoring and Verification of Existing Conditions and DMR Data Review.
This facility discharges to both Belews Lake (001) and the Dan River (003). Outfall 002 is an
internal outfall discharging to the ash basin. Both are located within sub -basin 03-02-01. Dan River and
Belews Lake are not 303(d) listed (2006 303(d)).
One of the permit requirements is to perform an assessment of balanced and indigenous
populations in Belews Lake. This requires the Belews Creek Plant to have a number of uplake, in -lake
and downlake sampling sites. Three macroinvertebrate sampling stations are maintained in Belews Lake
and three fish monitoring stations. The report was evaluated by the Division's Biological Assessment
Unit (BAU) and recommends:."It was noted that greater emphasis should be placed on collecting ample
macroinvertebrate biomass for elemental analyses to alleviate detection limit difficulties. BAU therefore
recommends that the number of groups of organisms being analyzed be reduced from five to three and
the collection of Odonata and Ephemeroptera be discontinued due to low abundance of taxa.
Based on the selenium monitoring it was noted that benthic macroinvertebrate samples were collected
with a 1,000 -gm mesh kick net.at wadeable depths along the shoreline at each location, therefore BAU
recommends that -utilizing a kick net for lentic, edge habitats is not appropriate and the use of such a net
in these habitats may be contributing to the alleged difficulty in obtaining sufficient biomass of Odonata
and Ephemeroptera. To properly sample lentic, edge habitats associated with lake margins sweep net
would be far more effective and appropriate sampling device. Consequently, DWQ recommends that
Odonata and Ephemeroptera remain as target groups for "elemental analyes" for at least the next year and
that a sweep net (with the same mesh size) be employed for shoreline, wadeable macroinvertebrate
collections.
Discharge Monitoring Reports (DMRs) for the outfalls were reviewed from January 2004 -June
2007. Flow and temperature (effluent, upstream and downstream) are measured at outfall 001, a
discharge consisting of once -through cooling water and miscellaneous equipment and non -contact
cooling water; flow during this time averaged 1271 MGD. In general, though the effluent temperature
was several degrees higher than the upstream temperature, the downstream temperature was the same or
nearly the same as the upstream temperature. No exceedences of the downstream temperature limit of
32°C was noted (see the attached chart).
Fact Sheet
NPDES NC0024406Renewal
Page 2

Outfall 003 consists of the ash basin discharge as well as flow from the power house.and yard
holding sumps,. the chemical holding pond,: coal yard sumps, groundwater remediation water and
stormwater. The average flow from this outfall was 8.2 MGD with a high of 14.7 MGD. Selenium, iron,
copper, arsenic, cadmium, chromium, chloride, mercury, nickel, silver, zinc, fluoride, sulfate, TSS, oil
and grease, total nitrogen, and total phosphorus are monitored at this outfall. The average TSS
measurement in the outfall was 6.67 mg/L, though the. detection level was highly variable. The average
oil and grease measurements were non -detects, Average total nitrogen was. 0.40 mg/L and average total
phosphorus was 0.0095 mg/L (with many of the samples resulting in non -detects).
PERMITTING STRATEGY
Waste Load Allocation (WLA). The Division prepared the last VLA in 1996 for each of the
external outfalls using the updated streamflow data from the USGS' profile of the Roanoke. Mary Cabe
of the NPDES unit used the facility's average flow to get the IWC on which the toxicity test is based.
The previous and current effluent limits were based on guidelines and water quality, standards. The
Division has judged previous parameters and limits to be appropriate for renewal with some exceptions
(see Reasonable Potential Analysis).
Technology Based Limits:
Outfall 003 has limits based upon the Federal effluent limitation guidelines (40 CFR Part 423)
for low-volume waste sources as well as the chemical metals cleaning guidance. The iron and
copper limits were placed in the permit as concentration .based limits some time ago. This
decision was based upon the large retention time of the ash pond,. which could result in iron and
copper from a single metals cleaning event being discharged over a long period of time. Since
concentration based limits would be more environmentally conservative in this case (i.e. more
difficult to meet than a pound per day value that could be modulated by varying the discharge
volume), these were placed in the permit to be protective of the receiving stream.. It is the permit
writer's decision to keep these limits as concentration based for the protection of the aquatic
environment.
Reasonable Potential Analysis (RPA)
The Division conducted EPA -recommended analyses to determine the reasonable potential for
toxicants to be discharged by this facility from outfall 003. No chemicals are added to the wastestream
at 001 nor is Duke required to monitor for anything other than flow and temperature at that outfall. The
RPA for outfall 003 is based on nearly three years of DMR data (January 2004 — June 2007) for arsenic,.
copper, fluoride, iron, selenium, and sulfate. Other data was taken from samples submitted with the
facility's priority pollutant analysis (ppa). Calculations included: arsenic, copper, fluoride, iron,
selenium, and sulfate. The flow value used in the'RPA was the 961 percentile value. The results of the
RPA is as follows:
Arsenic — The maximum predicted concentration was determined to be less than the allowable
concentration. However, because the facility will commission the FGD system by the end of 2007,
quarterly monitoring will be continued and will revert to weekly when outfall 002 is discharging. -
Copper — The maximum predicted concentration was determined to be greater than the allowable
concentration, and is subject to effluent limitation guidelines so a limit of 1.0 mg/L is maintained. A
quarterly monitoring will be continued. .
Fluoride — The maximum, predicted concentration was determined to be less than the allowable
concentration. Quarterly monitoring will be continued.
Fact Sheet
NPDES NC0024406Renewa]
Page 3

Iron - The maximum predicted concentration was determined to be less than the allowable r
concentration, and is subject to effluent limitation guidelines so a limit of 1.0 mg/L is maintained. A, ,
quarterly monitoring will be continued.
Selenium - The maximum predicted concentration was determined to be less than the allowable
concentration. However,. because the facility will commission the FGD system by the end of 2007,
quarterly monitoring will be continued and will revert to weekly when outfall 002 is discharging.
The limit will be deleted.
Sulfates - The maximum predicted concentration was determined to be less than the allowable
concentration. Monthly monitoring will be deleted.
WHOLE EFFLUENT TOXICITY (WET) TEST
Type of Toxicity Test: Chronic Toxicity (Quarterly)
Existing Limit: 003: Chronic P/F @ 19%
Recommended Limit: 003: Chronic P/F @ 19%
Monitoring Schedule: February, May, August, and November
The permittee has passed all the eighteen WET tests from February 2003 to May 2007. See the
attached WET testing summary.
COMPLIANCE REVIEW
DWQ — The Winston-Salem Regional Office (WSRO) staff conducted an annual facility inspection
and David Russell prepared a staff report dated December 7, 2006. The facility was in satisfactory
condition and in compliance with the NPDES permit at the time of the inspection.
DMR records indicated the facility had no compliance issue during January 2004 through June
2007 reporting period.
SUMMARY OF PROPOSED CHANGES
In keeping with Division policies the following will be incorporated into the permit:
• Limit for selenium will be deleted because there is no reason potential to exceed the
water quality standard.
• Monthly monitoring for Sulfate will be deleted.
Temperature limit will be expressed in degrees Celsius
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice: September 12, 2007
Permit Scheduled to Issue: November 5, 2007
NPDES UNIT CONTACT
Fact Sheet
NPDES NC0024406Renewa]
Page 4

If you have questions regarding any of the above information or on the attached permit, please
contact Agyeman Adu-Poke at [phone] ext. 508.
NAME • DATE
Regional Office Comments .
NAME • DATE:
NPDES SUPERVISOR: DATE:
Fact Sheet
NPDES NC0024406Renewal
Page 5

References
1. NPDES Permit Application Standard Form 2C, Duke Power LLC Belews Creek
Steam Station, received by North Carolina Department of Environment. & Natural
Resources, Division of Water Quality, Raleigh, North Carolina, January 2007.
2. NPDES Regional Staff Report and Recommendations for the Renewal, for Duke
Power LLC Belews Creek Steam Station, NPDES Permit No. NC0024406, Winston-
Salem Regional Office, December 2006.
3. NPDES Permit No.NC0024406 issued to the Duke Power LLC Belews Creek Steam.
Station with expiration February 28, 2007.
4. Roanoke River Basinwide Water Quality Plan, North Carolina Department of
Environment & Natural Resources, Division of Water Quality, Raleigh, North
Carolina, September 2006.
5. NPDES Waste Load Allocation Work Sheet, NPDES Permit No. NC0024406, the
Duke Power LLC Belews Creek Steam Station, North Carolina Department of
Environment & Xatural Resources, Division of Water Quality, Raleigh, North
Carolina,. 1996.
6. NPDES Whole Effluent Toxicity Test Results, February 2003 through May 2007,
North Carolina Department of Environment & Natural Resources, Division of Water
Quality, Environmental Services Section, Aquatic Toxicology Unit, Raleigh, North
Carolina, 2007.
7. Discharge Monitoring Reports (DMR) for Effluent and instream monitoring, NPDES
NCO024406 for the Duke Power LLC Belews Creek Steam Station, North Carolina
Department of Environment & Natural Resources, Division of Water Quality, Central
File, Raleigh, North Carolina, 2007.
8. Assessment of Balanced and Indigenous Populations in Belews Lake for Belews
Creek Steam Station, NPDES Permit NC0024406, August 2006.
Fact Sheet
NPDES NC0024406Renewal
Page 6

NORTH CAROLINA
FO,RSYTH COUNTY
AFFIDAVIT OF PUBLICATION
Before the undersigned, a Notary Public of said County and State, duly
commissioned, qualified, and authorized by law to administer oaths, personally
appeared D.H. Stanfield, who being duly sworn, deposes and says: that he is
Controller of the Winston-Salem Journal, engaged in the publishing of a newspaper
known as Winston-Salem Journal, published, issued and entered as second class mail
in the City of Winston-Salem, in said County and State: that he is authorized to
make this affidavit and sworn statement: that the notice or other legal advertisement,
a true copy of which is attached hereto, was published in Winston-Salem Journal on
the following dates:
September 15, 2007
and that the said newspaper in which such notice, paper document, or legal
advertisement was published was, at the time of each and every such publication, a
newspaper meeting all the requirements and qualifications of Section 1-597 of the
General Statutes of North Carolina and was a qualified newspaper within the
meaning of Section 1-597 of the General Statutes of N h CZ
This 17th day of September, 2007
(signature of ers making affidavit)
Sworn to and subscribed before me, this 17th day of September, 2007
Notary u is
My Commission expires: September 28, 2010
PUBLIC NOTICE
STATE OF NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT
COMMISSION/NPDES UNIT
1617 MAIL SERVICE CENTER
RALEIGH, NC 27699-1617
NOTIFICATION OF INTENT TO ISSUE
A NPDES WASTEWATER PERMIT
on the basis of thorough staff review and applica-
tion of NC General Statute 143.21, Public law 92-500
and other lawful standards and regulations, the
North Carolina Environmental Management Com-
mission proposes to issue a National Pollutant.Dis-
charge .Elimination System (NPDES) wastewater
discharge permit to the person(s) listed below ef-
fective 45 days from the publish date of this notice.
Written comments regarding the proposed permit
will be accepted lrntil 30 days after the publish date
of this notice. All comments received prior to that
date are considered in the final determinations
regarding the proposed permit. The Director of the
NC Division of Water Quality may -decide to hold
a public meeting for the proposed permit should
the Division receive a significant degree of public
interest.
Copies of the draft permit and other supporting
information' on file used to determine conditions
present in the draft permit are available upon
request and payment of the costs of reproduction.
Mail comments and/or requests for information to
the 'NC Division of Water Quality at the above ad-
dress or call Dina Sprinkle [phone], extension
363 at the Point Source Branch. Please include the
NPDES permit number (attached) in any communi-
cation. Interested persons may also visit the
Division of Water Quality at 512 N. Salisbury Street,
Raleigh, 'NC 27604-1148 between the hours of 8:00
a.m. and 5:00 p.m. to review information on file.
Duke Power LLC has applied for renewal of the
NPDES discharge permit (NC0024406) for its Belews
Creek Steam Station in Stokes, County. This permit-
ted facility discharges once -through cooling water
and treated wastewater to the Belews Lake and
Dan River within the Roanoke River Basin.. The
following parameters are currently water quality
limited: TSS, and oil and Grease. This discharge
;,may affect future allocations in this portion of the
; Dan River.
WS): September 15, 2007

Table -1. Project Information , .,, . Table 2:.Parameters of Concern
Name ' ' Type Chronic Modifier' Acute PQL Units
Facility Name
WWTP Grade
NPDES;Permit
Outfall -
Flow,- Qw,(M G D)
Receiving Stream,
Stream Class
.7Q10s-(cfs):=
7Q10w (cfs) "'
30Q2 (cfs).
Time :Period`
Data Source(s)
Duke Power Belews Creek Steam :Station
NC0024406
003 -
'
Dan River
wsi-V
195.0
r°
ah004 June 2007 ,
DMR, Renewal apphcafion
Par01
Arsenic
;C,
;1;0
.
;,'ug%L
Par02
,"":—,,Copp r
NC
7
= AL <_
7:3
'ug/L'
Par03
-`: Fluoride . ;::
NC
1;.8
mg/L
Par04
`= Iron
NC`
1
mg/L
Par05
Selenium
NG
5
56
ug /L
Par06
`:" Sulfates
NC,
:250
mg/L
Par07
rP.ar08
Par10
Par12
Par13
{
Par14
Par15I.
npdes rpa, input
9/11/2007

REASONABLE POTENTIAL ANALYSIS
Duke Power - Belews Creek Steam Station . Outfall 003
NCO024406
Qw = 10.3 MGD
Time Period Jan 2004- June 2007
Qw (MGD) 10.3
WWTP Class
7Q10S (cfs) 80
IWC (%) @ 7Q10S 16.636
7WOW (cfs) 160
@ 7Q10W 9.0728
30Q2 (cfs) 195
@ 30Q2 7.5676
Avg. Stream Flow, QA (cfs) 576
@ QA 2.6969
Rec'ving Stream Dan River
Stream Class WS -1V
'Legend.
C = Carcinogenic
NC = Non -carcinogenic
A =Aesthetic
Freshwater Discharge
npdesrpa,rpa
9/11/2007
STANDARDS &
PARAMETER
TYPE
CRITERIA (2)
PQL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NCWQS1 %FAV/
n #Det Mas ProdCw AllowableCw
(1)
Chronic Acute
Acute: N/A
Arsenic
C
10
ug/L
15 15
19.1
Continue quarterly monitoring
_ _ _ _
Chronic_ 371.
ReNertto weekly monttonng when 002 ischarging
,�.�,�. t-xi�rA.t
Acute: 7
Copper
NC
7.0 AL 7.3
ug/L
15 4
43.0
Continue quarterly monnn'g._,�„ -�
_ _ _- _-
Chronic 42
k, IimK of 1 0 mg/1."will b'e continue 6,6-r ELG1 "�,
Acute: N/Ar
Fluoride
NC
2
mg/L
15 14
6.1
Continue quarterlymondoring
Chronic_
Acute: N/A
a -1,
fi r i
g, r
Iron
NC
1
mglL
14 14
0.2
continue quarterlymomtonng
_ _ _-_ _-
Chronic 6
A limd of 1 0 Ing/L veil be cdnunue per ELG ",-
Acute: 56������
s w
AV
Selenium
NC
5 56
u /L
g
43 43
23.1
Continue uarte Hhmonsitonri' `' r£ ff. '+_
q , ny 9 Y,.,�. < s_r�,,
_ _ _ _
- -
Chronic 30
�....
A limdof 26 ug/Lwtll be�deletea .�
Reveiito,weeklAirlonrtoH'-66W'9 e'n 002,�s,cfiargiig
Acute: N/A
Sulfates
NC
250
mg/L
42 42
33.2
No mondonng is,iecoirimentleci " kc ;e 4t
_ _ _ _ _
Chronic 1,503
'Legend.
C = Carcinogenic
NC = Non -carcinogenic
A =Aesthetic
Freshwater Discharge
npdesrpa,rpa
9/11/2007

REASONABLE POTENTIAL ANALYSIS
Date -
Data
BDL=1/2DL
Results
1 2/3/2004
8.2
8.2
Std Dev.
25/4/2004
6.9
6.9
Mean
37/6/2004
8.1
8.1
C.V.
48/3/2004
10.1
10.1
n
5 11/2/2004
6.2
6.2
511/2/2004
62/1/2005
2.2
2.2
Mult Factor =
75/3/2005
2.5
2.5
Max. Value
8 8/2/2005
7.7
7.7
Max. Pred Cw
911/1/2005
6.3
6.3
102/7/2006
3.9
3.9
9 111112006
115/2/2006
5.1
5.1
128/1/2006
9.8
s.8
2.5
1311/7/2006
7.3
7.3
5
142/6/2007
3.4
3.4
155/1/2007
7.7
7.7
13 11/7/2006
16t
5
2.5
z'
17 Y > t
5
2.5
18 a x 1
`i
5
19
a
1617
20
M
21:
qq
22
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
45
46
2.4732
6.3600
0.3889
15
1.8900
10.1
19.1
-1-
Copper
Date Data
BDL=1/2DL
Results
1 2/3/2004
5
2.5
Std Dev. 3.6154
25/4/2004
8.
8.0
Mean 4.5000
3716/2004
5
2.5
C.V. 0.8034
48/3/2004
t.'
5
2.5
n 15
511/2/2004
s
5
2.5
6 2/1/2005
8.
8.0
Mult Factor= 3.3100
75/3/2005
13.
13.0
Max. Value 13.0
88/2/2005
5
2.5
Max. Pred Cw 43.0
9 111112006
a;w
5
2.5
102/7/2006
<
5
2.5
115/2/2006
5
2.5
128/1/2006
11.
11.0
13 11/7/2006
<
5
2.5
142/6/2007
5
2.5
155/1/2007
5
2.5
a
1617
M
qq
18'
19",
20 z
21
22 x
sr f
{
23 s
s:t
26
27 k h
28
a
301.31
36
37
38
39
40
41
42
43
44
45
46
npdes rpa, data
.9/11/2007

-REASONABLE POTENTIAL ANALYSIS
Fluoride I Iron
Date. Data
BDL=1/2DL
Results
1 2/3/2004 0.4
0.4
Std Dev. 0.3015
25/4/2004 0.3
0.3
Mean 0.2633
37/6/2004 0.2
0.2
C.V. 1.1448
48/3/2004 1.3
1.3
n 15
511/2/2004 0.3
0.3
0.04
62/1/2005 0.1
0.1
Mu It Factor= 4.7200
75/3/2005 < 0.1
0.1
Max. Value 1.3
88/2/2005 0.2
0.2
Max. Pred Cw, , 6.1
9 11/1/2005 0.1
0.10
0.07
102/7/2006 0.1
0.10
88/2/2005
115/2/2006 0.1
0.10
Max. Pred Cw 0.2
128/1/2006 0.2
0.20
0.1
13 11/7/2006 " 0.2
0.20
0.05
.14 2/6/2007 0.2
0.20
11 8/112006
155/1/2007 0.2
0.20
16
0.06
0.1
17
132/6/2007
0.11
18 Q'
14 5/1/2007
19 a;
0.1
15 =`
21 w
ko
16
22
23 "
24
25 py r x v�
J %#
A
Y
f<
21�
29
304+ a
31 +
32
23
33y
24
34, #
25k3 s�
�s
i
3
26
37 ?,
38
,
26 3
t t
39
29 n
40
30`k
41
.
3
l4 1.
43it
n
44 :r
34<
v
45
46 N
{
Date
Data
BDL=1/2DL
Results
1 2/3/2004
0.07
0.1
Std Dev. 0.0262
25/4/2004
0.07
0.1
Mean 0.0707
37/6/2004
0.04.
0.0
C.V. 0.3699
48/3/2004
0.04
0.0
n 14
5 11/2/2004
0.04
0.0
62/j/2005
0.11
0.1
Mult Factor = 1.8700
75/3/2005
0.07
0.1
Max. Value 0.1
88/2/2005
0.05
0.1
Max. Pred Cw 0.2
92/7/2006
0.1-1
0.1
105/2/2006
0.05
0.1
11 8/112006
0.09
0.1
12 11/7/2006
0.06
0.1
132/6/2007
0.11
0.1
14 5/1/2007
0.08
0.1
15 =`
16
17,"
J %#
19 ;
I
20f z
f<
21�
22 s
23
24
y' eFr
25k3 s�
�s
26
26 3
t t
29 n
30`k
y
.
3
l4 1.
34<
�ti3
35
{
{ {
36
kik
37v'`
38
39t
40
41�
rt
42
43
44
45,'Y'
46 :
npdes rpa, data
-2- 9/11/2007

REASONABLE POTENTIAL ANALYSIS
-3-
npdes rpa, data
9/11/2007
Selenium
Sulfates
Date
Data
BDL=1/2DL
Results
Date
Data
BDL=1/2DL
Results '
1 1/6/2004
10.2
10.2
Std Dev.
2.8373
1 1/6/2004
33.2
33.2
Std Dev. 2.7438
21/20/2004
13.1
13.1
Mean
6.5395
22/3/2004
33.
33.0
Mean 27.5833
3 1/27/2004
`_
C.V.
0.4339
33/2/2004
ti#
30.9
30.9
C.V. 0.0995
4 2/3/2004t�
11.0
11.0
n
43
44/6/2004
�,
29.4
29.4
n 42
52/19/2004
:r,
11.0
11.0
55/4/2004
29.6
29.6
6 3/2/2004
9.8
9.8
Mult Factor =
1.5500
6 6/1/2004
M
28.8
28.8
Mull Factor = 1.0000
73/16/2004
9.4
-9.4
Max. Value
14.9 ug/L
77/6/2004
25.6
25.6
Max. Value 33.2
84/6/2004
10.2
10.2
Max. Pred Cw
23.1 ug/L
88/3/2004
23.6
23.6
Max. Pred Cw 33.2
94/20/2004
,-"
8.1
8.1
99/7/2004
24.5
24.500
l o 5/4/2004
`
8.3
8.3
lo 10/5/2004
26.1
26.100
11 5/19/2004
= '
7.1
7.1
11 11/2/2004
28.
28.000
126/1/2004
7.3
7.3
-12 12/7/2004
26.
26.000
13 6/15/2004
6.8
6.8
13 1/4/2005
25.2
25.200 .
14 7/6/2004
6.8
6.8
14211/2005
25.7
25.7
15 7/20/2004
7.3
7.3
153/1/2005
24.9
24.9
16 8/3/2004
y
7.1
7.1
16 4/11/2005
!
25.6
25.6
17 8/17/20045.5
5.5
175/3/2005
27.5
27.5
18 9/7/2004
"
6.0
6.0
186/7/2005
25.3
25.3
19 9/21/2004
5.4
5.4
197/5/2005
24.4
24.4
20 10/5/2004
4.4
4.4
208/2/2005
23.5
23.5
21 10/19/2004
3.4
3.4
21 9/6/2005
24.
24.0
22 11/2/2004
3.5
3.5
22 10/4/2005'
22.7
22.7
2311/16/2004
N
2.8
2.8
2311/1/2005
ar
25.
25.0
24 12/7/2004
3.6
3.6
24 12/6/2005
�
26.1
26.1
2512/20/2004.
4.6
4.6
251/3/2006
28.2
28.2
26 1/4/2005
3.9
3.9
262/7/2006
25.8
25.8
27 1/18/2005
3.9
3.9
273/7/2006
A
30.5
30.5
282/1/2005
6:
4.2
4.2
2s4/4/2006
029.6
29s
29 2/15/2005
`
3.8
3.8
295/2/2006
"
29.5
29.5
303/1/2005
.
fr
3.6
3.6
30 6/6/2006
€S,
25.
25.0
31 3/15/2005
° .
4.8
4.8
31 7/5/2006
28.7
28.7
32 4/11/2005
5.0
5.0
328/1/2006
30.2
30.2
33 4/21/2005
5.3
5.3
339/5/2006
U
28.1
28.1
345/3/2005
3.8
3.8
34 10/10/2006
26.5
26.5
35 5/17/2005:
5.3
5.3
35 11/7/2006
s
29.2
29.2
368/2/2005
5.0
5.0
36 12/5/2006
32.5
32.5
37 8/16/2005
,<
4.2
4.2
371/2/2007
„"
28.3
28.3
38 11/1/2005
3.9
3.9
382/6/2007
30.4
30.4 -
39 2/7/2006.
6.1
6.1
393/6/2007
27.3
27.3
405/2/2006
t
9.3
9.3
404/3/2007
30.7
30.7
418/1/2006
8.7
8.7
415/1/2007
31.4
31.4
42 11/7/2006
_''
7.0
7.0
426/5/2007
28.
28.0
432/6/2007
`
5.8
5.8chi
Y
445/1/2007
14.9
14.9
44
45 :�� i'
45i�pf
46
46
-3-
npdes rpa, data
9/11/2007

mg/L
mg/L
REASONABLE POTENTIAL ANALYSIS
• ;r
npdes rpa, data
' 4' 9/11/2007

50.0
45.0
40.0
35.0
V 30.0
d
25.0
d
20.0
15.0
10.0
5.0
0.0
Ambient Temperature Data at Belews Lake
O§ OI O� OI OD O� OHO 00 00 00 OHO
Month
�- effluent --*--downstream -*- upstream limit
A

Permit
Outfall Date
Parameter'
Units
Value- E
Value- D
Value - U
NCO024406
001
Jan -05
00010 - Temperature, Water Deg. Centigrade
deg c
24.9.
13.9
12.2
NCO024406
001
Feb -05
00010 - Temperature, Water Deg. Centigrade
deg c
25.4
12.4
10.6
NCO024406
001
Mar -05
00010 - Temperature, Water Deg. Centigrade
deg c
23.2
13.0
11.4
NCO024406
001
Apr -05
.00010 - Temperature, Water Deg. Centigrade
deg c
23.2
16.4
17.8
NCO024406
001
May -05
00010 - Temperature, Water Deg. Centigrade
deg c
26.5
20.2
22.4
NCO024406
001
Jun -05
00010 - Temperature, Water Deg. Centigrade
deg.c
36.3
28.6
28.1
NCO024406
001
Jul -05
00010 - Temperature, Water Deg. Centigrade
deg c
41.6
31.1
31.0
NCO024406
001
Aug -05
00010 - Temperature, Water Deg. Centigrade,
deg c
42.9
30.3
31.4
NCO024406
001
Sep -05
00010 - Temperature, Water Deg. Centigrade
deg c
39.9
..29.7
28.6
NCO024406
001
Oct -05
00010 - Temperature, Water Deg. Centigrade
deg c
34.0
25.2
23.3
NCO024406
001
Nov -05 .
00010 - Temperature, Water Deg. Centigrade
'deg c
29.7
20.5
17.6
NCO024406
001
Dea•05
00010 -Temperature, Water Deg. Centigrade
deg c
23.3
14.6'
10.5
NCO024406
001
Jan -06
00010 - Temperature, Water Deg. Centigrade '
deg c
24.3
'14.6
10:7
NCO024406
001
Feb -06
00010 - Temperature, Water Deg. Centigrade
deg c
22.0
14.2
10.7
NCO024406
001
Mar -06
00010 - Temperature', Water Deg. Centigrade
deg c
24.1
15.0
14.1
NCO024406
001
Apr -06
00010 -Temperature, Water Deg. Centigrade
deg c
28.5
17.5
19.5
NCO024406
001.
May -06
00010 - Temperature, Water Deg. Centigrade
deg c, •
34.4
23.6
23.4
NCO024406
001
Jun -06
00010 - Temperature, Water Deg. Centigrade
deg c
38.9
28.8
28.8
NCO024406
001
Jul -06
00010 - Temperature, Water Deg. Centigrade
deg c
39.0
32.0
30.3
NCO024406
001
Aug -06
00010 - Temperature, Water Deg. Centigrade
deg c
41.8
32,0
31.5
NCO024406
001
Sep -06
00010 -Temperature, Water Deg. Centigrade `
deg c
37.8.
25.5
26.8
NCO024406
001.
Oct -06
00010 -Temperature, Water Deg. Centigrade
deg c
32.9
23.7
21.5
NCO024406
001
Nov -06
00010 - Temperature, Water Deg. Centigrade
deg c
28.8
17.7
:15.5
NCO024406
.001
Dec -06
00010 - Temperature, Water Deg. Centigrade
deg c
25.9
16.2
13.3
NCO024406
001
Jan -07
00010 - Temperature, Water Deg. Centigrade
deg c
25.3
15.9
10.9
NCO024406
001
Feb -07
00010 - Temperature, Water Deg. Centigrade
deg c
23.2
12.3
8.9
NCO024406
001
Mar -07
00010 - Temperature, Water Deg. Centigrade
deg c
26.2
15.7
15.0
NCO024406
001
Apr -07
00010 - Temperature, Water Deg. Centigrade
deg c
27.9
15.8
19.5
NCO024406
001
May -07
00010 - Temperature, Water Deg. Centigrade
deg c
35.8
23.0
24.7
NCO024406
001
Jun -07
00010 -Temperature, Water Deg. Centigrade
''deg c
38.7
28.9
28.9

. y
NCO024406
001
Jan -05
50050 - Flow, in conduit or thru treatment plant
mgd
941.4
NCO024406
001
Feb -05
50050 - Flow, in conduit or thru treatment plant
mgd
1006.0
NCO024406
001
Mar -05
50050 - Flow, In conduit or thru treatment plant
mgd
906.4
NCO024406
001
Apr -05
50050 - Flow, in conduit or thru treatment plant
mgd
770.4
NCO024406
001
May -05
50050 - Flow; in conduit or thru treatment plant
mgd
1296.1
NC0024406
001
Jun -05
50050 - Flow, in conduit or thru treatment plant
mgd
1457.7
NCO024406
001
Jul -05
50050 - Flow, in conduit or thru treatment plant
mgd .
1454.5
NCO024406
001
Aug -05
50050 - Flow, in conduit or thru treatment plant
mgd
1459.0
NCO024406
001
Sep -05
50050 - Flow, in conduit or thru treatment plant
mgd
1459.0
NCO024406
001
Oct -05
50050 - Flow, in conduit or thru treatment plant
mgd
1442.1-
NCO024406
001
Nov -05
50050 - Flow, in conduit or thru treatment plant
mgd
1333.3
NCO024406
001
Dec -05
50050 - Flow, in conduit or thru treatment plant
mgd
1239.9
NCO024406
001
Jan -06
50050 - Flow, in conduit or thru treatment plant
mgd
1277.4
NCO024406
001
Feb -06
50050 - Flow, in conduit or thru treatment plant
mgd
1230.8
NCO024406
001
Mar -06
50050 - Flow, in conduit or thru treatment plant
mgd
1135.9
NCO024406
001
Apr -06
50050 - Flow, in conduit or thru treatment plant
mgd
991.6
NCO024406
001
May -06
-50050 - Flow, in conduit or thru treatment plant
mgd
1431.9
NCO024406
001
Jun -06
50050 - Flow, in conduit or thru treatment plant
mgd
1374.7
` NCO024406
001
Jul -06
50050 - Flow, in conduit or thru treatment plant
mgd
1459.0
NCO024406
001
Aug -06
50050 - Flow, in conduit or thru treatment plant ..
mgd
1459.0
NCO024406
001
Sep -06
50050 - Flow, in conduit or thru treatment plant
mgd
1455.4
NCO024406
001
Oct -06
50050 - Flow, in conduit or thru treatment plant
mgd
1325.8
NCO024406
001
Nov -06
50050 - Flow, in conduit or thru treatment plant
mgd
1111.6
NCO024406
001
Dec -06
50050 - Flow, in conduit or thru treatment plant
mgd
1329.9
NCO024406
001
Jan -07
50050 - Flow, in conduit or thru treatment plant
mgd
1302.8
NCO024406
001
Feb -07
50050 - Flow, in conduit or thru treatment plant
mgd
1335.1
NCO024406
001
Mar -07
50050 - Flow, in conduit or thru treatment plant
mgd
1169.4
NCO024406
001
Apr -07
50050 - Flow, in conduit or thru treatment plant
mgd
1191.3
NCO024406 .
001
May -07
50050 - Flow, In conduit or thru treatment plant
mgd
1333.7
NCO024406
001
Jun -07
50050 - Flow, in conduit or thru treatment plant
mgd
1457.7
-
Average Flow
mgd
1271.3

Re: Belews Lake - Duke Energy Steam Station (NC0024406)
Subject: Re: Belews Lake - Duke Energy Steam Station (NC0024406)
From: Connie Brower <[e-mail]>
Date: Wed, 22 Aug 2007 17:45:05 -0400
To: Agyeman Adu-Poku <[e-mail]>
CC: Michelle Raquet <[e-mail]>, "Debra.Owen" <[e-mail]>,
Dianne Reid <[e-mail]>
Agyeman --
you are correct---- no 316a variance is in existence for Belews Creek Stream Station
-- the attached document was checked very thoroughly for the TRI REVIEW
pkg... however, more than one person assumed that there was a variance -- Deb and
Dianne questioned the issues when Belews had some data that was high -- they can be
of more service in that arena -
connie
Agyeman Adu-Poku wrote:
Connie,
I•am reviewing the renewal application for the subject, however the,permit file
has no indication of 316a variance for Duke Energy Belews Creek Steam Station but
the 2006 Roanoke Basin plan (page 19) states that Duke has temperature variance.
I spoke with Robert Wylie, Duke Energy, and he indicated that Duke has no
temperature variance at that plant.
Susan said, you had the same issue some time back, could you please share with me
what you found out?
Thanks,
Agyeman
Connie Brower <Connie.Brower ancmail.net>
Industrial Hygiene Consultant
NC DENR
Division of Water Quality
Content -Type: application/msword
Thermal Variances.doc
Content -Encoding: base64
1 of 1 8/24/2007 9:15 AM

Thermal Variances
Thermal wastewater discharges in North Carolina are subject to effluent limitations under North Carolina
Administrative Code Section: 15A NCAC 02B .0211 (3) 0). This rule limits thermal discharges to 2.8
degrees C (5.04 degrees F) above the natural water temperature and includes further restrictions based on
geographic regions of the state. Exceptions to these limits are allowed under the temperature variance
provisions of the federal Water Pollution Control Act, commonly known as the Clean Water Act, under
Section 316(a). Under this provision of the Clean Water Act, permittees must demonstrate that the
variance for the thermal component of the discharge assures the protection and propagation of a balanced,
indigenous population of shellfish, fish and wildlife in the receiving water.
The permit holders listed below have requested continuance of the Clean Water Act 316(a)- temperature
variances, which allow for site by site limitations based upon studies conducted by the Permittee and
submitted to NC Division of Environment and Natural Resources (DENR). The Division of Water Quality
has determined that these studies submitted by the permittees comply with Section 316(a) of the Clean
Water Act. On the basis of North Carolina Administrative Code Section: 15A 02B .0208 (b), and other
appropriate lawful standards and regulations, the North Carolina Division of Water Quality proposes to
continue the 316(a) variance in conjunction with the renewal of the following National Pollutant
Discharge Elimination System (NPDES) permits:
Permit Facility County Subbasin
NC0000272
Blue Ridge Paper Products, Inc —Canton Mill
Haywood
040305
NC0000396
Progress Energy (formerly Carolina Power & Light)
Asheville Steam Electric Power Plant
Buncombe
040302
NC0003468
Duke Energy Corp.
—Dan River Steam Station
Rockingham
030203
NC0004774
Duke Energy Corp.
—Buck Steam Station
Rowan
030704
NC0004961
Duke Energy Corp.
—Riverbend Steam Station
Gaston
030833
NC0004979
Duke Energy Corp.
—Allen Steam Station
Gaston
030836
NC0004987
Duke Energy Corp.
—Marshall Steam Station
Catawba
030832
NC0005088
Duke. Energy Corp.
—Cliffside Steam Station
Rutherford
030802
NC0024392
Duke Energy Corp.
—McGuire Steam Station
Mecklenburg
030832

1.5.3 Belews Lake [AU# 22-27-(7),22-27-(7.5), (West Belews Creek) 22-27-9-(4)]
Current Status and 2006 Recommendation
Belews Lake (Belews Creek) [AU# 22-27-(7)], from Southern Railroad Bridge to a point 1.8
mile downstream of Forsyth -Stokes County Line (789.7 acres) is Supporting aquatic life based
on data from samples taken at site NL6. Belews Lake (Belews Creek) [AU# 22-27-(7.5)], from a
point 1.8 mile downstream of the Forsyth -Stokes County Line to Dan River, excluding the Arm
of Belews Lake described below which are classified "WS-IV&B" (1,283.8 acres), is Supporting
aquatic life based on data from samples collected at sites NL3 and NL5. It was noted that the
percent dissolved oxygen saturation exceeded the target of 120 percent in 9 percent of the
samples taken, indicating potential algal activity. However, no other parameters were elevated in
this segment. Belews Lake (West Belews Creek) [AU# 22-27-9-(4)], from a point 0.4 mile
downstream of Power plant to Belews Creek (582.4 acres), is Supporting aquatic life based data
from samples taken at site NL 4.
The lake provides condenser cooling water for the Belews Creek Duke Power Steam Station.
Water quality sampling during the summers of 2000, 2001, 2002 and 2004 indicated low
concentrations of nutrients and chlorophyll a. Assessment of parameters related to biological
productivity indicated low biological productivity and oligotrophic conditions, as has been seen
in historical sampling. Water temperatures were above the state water quality standard for
temperature on some sampling visits but this has been seen in historical sampling and is due to
the discharge from Duke Power's Belews Creek Steam Station coal-fired power plant. -Duke
Power has a temperature variance for the lake that allows exceedance of the state temperature
standard above the dam.
Duke Power has performed chemical treatment on about 100 acres in 2004 to control Hydrilla
sp. in Belews Lake (Rob Emens, N.C. Division of Water Resources, personal communication) in
the vicinity of NC 158 outside the area where DWQ sampling sites are located.
A fish consumption advisory against eating fish contaminated with selenium due to a now closed
coal ash disposal basin at the power plant was rescinded in August 2000 as selenium levels in the
fish were below concentrations of concern (Luanne Williams, NC Division of Public Health,
personal communication). This reduction resulted in the removal of Belews Lake from the
303(d) list of impaired waters.
Duke Power also conducts water quality sampling and benthic macroinvertebrate and fisheries
monitoring of Belews Lake (Duke Power, 2001). This monitoring has shown that Belews Lake
water chemistry has improved since the mid 1980's. The dry fly ash discharge.from the Belews
Creek Steam Station was rerouted from Belews Lake to the Dan River in 1985. Sediment
arsenic and selenium levels in the lake have remained elevated relative to non -impacted sites but
have gradually declined. Selenium levels in benthic macroinvertebrates have also declined but
levels in macroinvertebrates collected in the downstream portion of the lake were higher than
those collected in the upstream portion of the lake. The benthic macroinvertebrate species
diversity indicates that the Belews Creek Steam Station is not impacting the benthic
macroinvertebrate community. Selenium concentrations in the fish in Belews Lake are not high
enough to pose a threat to fish or human populations. The fish community in Belews Lake was
Chapter I — Roanoke River Basin 03-02-01 19

June 05, 2007
Mr. David J. Coughlan
Duke Energy
Corporate EHS Services
McGuire Environmental Center
13339 Hagers Ferry Road
Huntersville, NC 28078
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Subject: Review of Duke Energy Report, August 2006 - Assessment of Balanced and
Indigenous Populations in Belews Lake for Belews Creek Steam Station.
NPDES No. NCO024406
Dear Mr. Coughlan,
The Environmental Sciences Section has reviewed the 2006 NPDES report for Belews
Creek Steam Station summarizing station operations, water chemistry, and biological
data collected from 2001 — 2005.
Eric Fleek of the Biological Assessment Unit reviewed the Benthic Macroinvertebrate
section of the document and offers the following comments:
I have no objections to the changes in the monitoring program as detailed in the
"RECOMMENDATIONS" section (Page 3-6) with the following exception:
Coleen H. Sullins, Director
Division of Water Quality
On Page 3-7, it is noted that: "greater emphasis should be placed on collecting ample
macroinvertebrate biomass for elemental analyses to alleviate detection limit difficulties.
We therefore recommend that the number of groups of organisms being analyzed be
reduced from five to three and that the collection of Odonata and Ephemeroptera be
discontinued due to low abundance of these taxa."
Based on a review of the "Selenium Monitoring' protocols (Page 3-2) it is noted that:
"Benthic macroinvertebrate samples were collected with a 1,000 -pm mesh kick net at
wadeable depths along the shoreline at each location".
Therefore, the following is recommended: Utilizing a kick net for lentic, edge habitats is
not appropriate and the use of such a net in these habitats may be contributing to the
alleged difficulty in obtaining sufficient biomass of Odonata and Ephemeroptera. To
properly sample lentic, edge habitats associated with lake margins a sweep net would be
a far more effective and appropriate sampling device. Consequently, DWQ recommends
that Odonata and Ephemeroptera remain as target groups for "elemental analyses" for at
least the next year and that a sweep net (with the same mesh size) be employed for
shoreline, wadeable macroinvertebrate collections.
Nope Carolina
Ntura!!y
North Carolina Division of Water Quality 1621 Mail Service Center Raleigh, NC 27699-1621 Phone [phone]
Internet: h2o.enr.state.nc.us 4401 Reedy Creek Rd. Raleigh, NC 27607 FAX [phone]
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper

Jeff DeBerardinis of the Biological Assessment Unit reviewed the Fisheries portion of the
document and offers the following comments:
In regard to Belews Lake fisheries assessments beginning in the spring of 2007, common
carp, Cyprinus carpio and either crappie species Pomoxis nigromaculatus and or
Pomoxis annularis may be dropped from the list of targeted species based on the
following conditions: `
1) As a replacement for common carp, attempt to collect an alternate bottom
feeding species such as channel catfish Ictalurus punctatus, white catfish
Ictalurus catus, brown bullhead, Ameiurus nebulosus, or flat bullhead,
Ameiurus platycephalus for contaminant analysis. If the collection of a
suitable catfish species proves problematic, Duke Biologists should consult
with DWQ to adjust target species in future assessments.
2) Continue to sample redear sunfish Lepomis microlophus as a mid trophic
level species at all sampling stations in the lake for contaminant analysis.
3) Begin the collection and analysis of largemouth bass Micropterus salmoides
at all stations in the lake as a top predator species for contaminant analysis.
Thank you for continuing to provide updates on Duke Energy's monitoring efforts with
regard to the Belews Creek Steam Station NPDES permit. If you have any questions or
concerns about any of the comments or monitoring changes listed above, please contact
either Eric Fleek or Jeff DeBerardinis at 919-815-1289,, or at the following email
addresses:
eric.fleek(cD,ncmail.net
jeff.deberardinis(cD-ncmail.net
Sincerely,
Jimmie Overton
Chief, Environmental Sciences Section
cc: Trish MacPherson (ESS)
Mark Hale (ESS)
Steve Tedder (WSRO)
Gil Vinzani (Eastern NPDES).
Ronald Lewis (Duke Energy)
Keith Finley (Duke Energy)

erg
To: Permits and Engineering Unit
Water Quality Section
Attention: harles Weay_er _�
Date: December 7, 2006
NPDES STAFF REPORT AND RECOMMENDATION
County: Stokes
Permit No. NCO024406
PART I - GENERAL INFORMATION
1. Facility and Address: Belews Creek Steam Station (Duke Power)
Pine Hall Road
Walnut Cove, NC 27052
2. Date of Investigation: On site 12/14/05, File review 10/23/06
3. Report Prepared by: David Russell
GEC ,a2, Njo a
4. Persons Contacted and Telephone Number: Melonie Martin, Associate Scientist (336)
445 -0610 -work; (336) 669 -2994 -cell.
5. Directions to Site: From Winston-Salem travel Highyway 311 to walnut.Cove. Right on
Highway 65 towards Stokesdale, go approximately 1 mile, left on Martin Luther King
(MLK) Rd. MLK Road turns into Pine Hall Rd., continue on Pine Hall Rd. to entrance.
6. Discharge Points(s), List for all discharge points:
Outfall 001: Latitude: 36 16 49.5 Longitude: 80 03 39.8
Outfall 003: Latitude: 36 18 22 Longitude: 80 04 50.7
U.S.G.S. Quad No. B18SE U.S.G.S. Quad Name Belews Lake
7. Site size and expansion area consistent with application? (YDNo If No, explain:
8. Topography (relationship to flood plain included) ; Flood Plain not an issue.
9. Location of nearest dwelling: Nothing within 1000'.

10. Receiving stream or affected surface waters:
Outfall 001-Belews 'L
a. Classification: C
b. River Basin and Subbasin No.: Roanoke 030201
C. Describe receiving stream features and pertinent downstream uses:Most of the
Lake is used for fishing and recreation
Outfall 003 -Dan River
a. Classification: WS -IV
b. River Basin and Subbasin No.: Roanoke 030201
c. Describe receiving stream features and pertinent downstream uses: the Dan River
Is used asa. water supply.
Part II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater to be permitted: N/A (Ultimate Design Capacity)
b. What is the current permitted capacity of the Waste Water Treatment facility?
N/A
C. Actual treatment capacity of the current facility (current design capacity)?
N/A
d. Date(s) of construction activities allowed by previous Authorizations to Construct
issued in the previous two years. September 2006 A to C for a replacement
domestic WWTP with a discharge to the ash basin (003).
e. Please provide a description of existing or substantially constructed wastewater
treatment facilities: For domestic waste: lagoon, chlorine basin with effluent to
ash basin. For Flue Gas -wet Flue Gas Desulfurization System with discharge into
a wetlands system to ash basin.
f. Please provide a description of proposed wastewater treatment facilities. N/A
g. Possible toxic impacts to surface waters: N/A
h. Pretreatment Program (POTWs only):
2. Residuals handling and utilization/disposal scheme:
NPDES Permit Staff Report
Version 10/92
Page 2

a. If residuals are to be land applied, please specify DEM permit no.
b. Residuals Stabilization: PSRP PFRP Other.
C. Landfill: N/A -
d. Other disposal/utilization scheme (specify):
3. Treatment plant classification. (attach completed rating sheet). II
4. SIC Code(s):
Wastewater cod(s) from an actual wastewater, not particular facilities i.e, non contact
cooling water discharge from a metal plating company would be 14 not 56.
Primary- 14 Secondary 6802
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds or are any public monies
involved. (municipals only)? NA
2. Special monitoring or limitations (including toxicity) requests: The cover letter for
permit renewal contains monitoring reduction requests. Based on compliance history the
requests seem reasonable.
3. Important SOC, JOC or Compliance Schedule dates: (Please indicate) NA
Submission of Plans and Specifications
Begin Construction
Complete Construction
4. Alternative Analysis Evaluation: Has the facility evaluated all of the non -discharge
options available. Please provide regional perspective for each option evaluated.
Spray Irrigation: n/a
Connection to Regional Sewer System: Facilities domestic wastewater goes to Eden's
collection system.
Subsurface: n/a
Other disposal options: n/a
NPDES Permit Staff Report
Version 10/92
Page 3

5. Other Special Items:
PART IV - EVALUATION AND RECOMMENDATIONS
The Belews Creek Steam Station has two (2) permitted outfalls. 001 Condenser Cooling
Water, which is "once -through cooling water for the turbines. This discharge exceeds 1000 mgd.
Temperature is the main concern with the discharge. Outfall 003 for the ash basin
accommodates flows from the ash sluice lines plus other sources on the yard. The domestic waste
will also be added to the ash basin after it -is treated. The Flue Gas Desulfurization Treated
Wastewater will also be added to the ash basin as Outfall 002 (Internal NPDES Outfall) Outfall
002 is scheduled to be online January 2008. It is recommended that the permit be renewed with
two (2) effluent outfalls, 001 and 003. Outfall 002, an internal outfall into the ash basin, should
also be monitored.
A"j U*/Z 1* �
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Signature of report preparer
Water Quality Regional Supervisor
/2-$ -06
Date
cc: Permits and Engineering
Technical Support Branch
County Health Dept.
Central Files
WSRO
NPDES Permit Staff Report
Version 10/92
Page 4

Mr. Ronald E. Lewis
Duke Energy Corporation
P.O. Box 1006
Charlotte, NC 28201-1006
Dear Mr. Lewis:
tic o02-i'l0&
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
January 3, 2007
Alan W. Klimek, P.E. Director
Division of Water Quality
Staff of the Biological Assessment Unit (BAU) have reviewed the 2005 Dan River Summary Report
required by the NPDES permit for the Belews Creek Steam Station (NPDES Permit No. NC0024406) in
Stokes ,County.
The report summary notes that selenium in fish muscle tissue remained well below the 5 microgram/gram
concentration considered as the level at which to issue a consumption advisory. The benthos data also
continue to indicate no impact from the discharge to the Dan River. The benthos sampling has been
conducted annually since 1985.
Your letter of December 18, 2006 requested that Duke Energy biologists discontinue sampling bullheads
in the Dan River. DWQ approves the request to drop snail bullheads from monitoring efforts since tissue
concentrations have been consistently lower for this species offish that for other species. Any future
possible increases in tissue concentrations should be seen in the other two species still being monitored
(golden redhorse and sunfish).
Sincerely,'
verton
Chief, Environmental Sciences Section
cc: \/ Susan Wilson, Western NPDES Program
Steve Tedder, WSRO
Environmental Sciences Section 1621 Mail Service Center Raleigh, NC 27699-1621
Internet: www.esb.enr.state.nc.us 4401 Reedy Creek Road Raleigh, NC 27607
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